Artistically, this looks very good. I like how the cream colored border swoops up at the bottom, and overall like the simplicity of the sea pattern. What keeps it from being exceptionally great looking is that none of the art is done to the territories themselves. You see a good looking background, but then see flat territories on top of it. I wish the territories had cutouts depicting recognizable city buildings or plantations; something to make it pop more.
However, the map plays respectably, and looks pleasing. Good work.